Biretix Duo Anti-Imperfections Gel is a clear gel suitable for oily acne-prone skin, with the RetinSphere technology that encapsulates retinol in order to reduce side effects associated with that ingredient and to allow for a controlled release overnight. This is the key product in the range with optimum balance of cutting edge technologies: a unique combination of vitamin A ingredients help to clear pores and clarify the skin; a sophisticated botanical complex that’s clinically proven to fight the bacteria that cause spots and Salicylic acid; clinically proven to purify skin and help to reduce redness.